EP02.06.04 : Combination of Non-Fullerene Acceptors with Anthracene-Containing PPE-PPVs

11:30 AM–11:45 AM Apr 4, 2018

PCC North, 200 Level, Room 222 BC

Shahidul Alam1 2 Rico Meitzner1 2 Ogechi V. Nwadiaru1 3 Christian Friebe1 2 Jonathan Cann4 Johannes Ahner2 Christoph Ulbricht5 Zhipeng Kan6 Stephanie Höppener1 2 Martin D. Hager1 2 Gregory C. Welch4 Daniel A. M. Egbe5 7 Frederic Laquai6 Ulrich S. Schubert1 2 Harald Hoppe1 2

1, Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Jena, , Germany
2, Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, , Germany
3, Pan African University, Institute of Water and Energy Sciences, Tlemcen, , Algeria
4, Department of Chemistry, 731 Campus Place N.W., University of Calgary, Calgary, Alberta, Canada
5, Linz Institute for Organic Solar Cells (LIOS), Johannes Kepler University Linz, Linz, , Austria
6, King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Material Science and Engineering Program (MSE), Thuwal, , Saudi Arabia
7, Institute of Polymeric Materials and Testing, Johannes Kepler University, Linz, , Austria

Non-fullerene acceptors (NFA’s) have been receiving increasing attention for application in polymer-based bulk-heterojunction organic solar cells, as they have demonstrated improved photovoltaic performances over more conventional polymer-fullerene blends. Here, polymer solar cells based on statistically substituted anthracene-containing poly(p-phenyleneethynylene)-alt-poly(p-phenylenevinylene)s (PPE–PPVs) copolymer (AnE-PVstat) were investigated in combination with various electron accepting materials. In contrast to blends with PCBM, strong photoluminescence quenching of specifically the polymer indicates fine-scaled intermixing of materials. This was accompanied by a very weak photovoltaic function. By application of Time-Delayed Collection-Field (TDCF) measurements, it could be seen that charge generation and extraction was strongly limiting performance in these blends.